Polishing machine chiefly for sandpapering or varnishing with a. pad the surface of materials such as wood, marble, stone



A sept. 7 1926.I

F. JuRlcNEc: SAN

POLISHING IACHINE CHIIRLY DPAPERING 0R VARNI'SHING `'I'.ll'l A THE SURFACEOP IATERIALS SUCH AS MOOD, MARBLE. STORE PAD Filedlay 11.' 1925- 2 Sheets-Shoot 1 livel/7017 -Sepb 7,1926.

f l 1,599,091 JURICINEC F. POLIISHIHU MACHINE CHIEFLY'EOR S'ANDPAPERING 0R VARNISHING WITH A PAD THESURFACE 0F MATERIALS SUCH AS WOOD, MARBLE, STONE Filed May 1l. 1925 n 2 Sheets-Sheet 2 all? Patented Sept. 7,

nmpis Jini.;(mmc,` or Panis; Y Fmncn; "Assiefiror To- LAURnNmf JUmCINEfG:V or

imma-1:" Qa-TE PoLIsHING VMAGHINEXCEIEELY.: non; SANDPAPERING on vAnNIsH-ING WITH. arm) *THE sUnFAoEI oFlrMAmERIALs: sticxiasA weon, MARBLE, srroma`v y Application ledalfay 1'1;i 19.25%, rSmal Nol 2.9;603sfend ,inname lilly-9,v 1924- The Vpresent.'invention Vrelates tocetain new andfuseful improvements polishing machines chey for sand paperingv-or.- vai,-

nishing-with a pad thefr-surfaceofmaterial such4 aswood, maibleand stone, ,andthe 10bjects randfsfeatui'es f of) advantagefrwillbecome apparent as; the z description ,proceeds nfemhodiment-Q Leawood `sand papering machine `is described,I Ihereiinbelomv, byA VWay or exemple shownl` `.on .appended` draw,- ings.V together with adevice fori tool specially adapted fon polishing; maible With7 emeify- Wheels; Anelembodimentfofe a pad 1vvamnishing: machine.: isgalso .2de/scribed".

Fig.;V 1, is a general' front: View: of fthe; sand papel-ingI lmachine-1 with iai. Sand disc fon; polishing-woodl f Fig. 2 ison a the machine. f A .Y

Figs. 3'f1and4fare; atfanothenfscale, a; plan View and a side View ofnthefendothegmotor shaft with itsdisc. J f

\ Fig. 5" is.aperspective. Viewv ofzftfhie square tenen servingftosseouresthedisc.

Figs. fandffr( are;apax'ballyectinnaiside ,Y 1

'ban 5.1 .folrthe reception 'Off parte 42 Serving `Viewa'ndv aplan viewsfhum. imderneatrh of ithe device fonv 'seouringnam emeivy lWheehyto this/machina x s i y 'g l Figsg 9fa'nd lshowgin sideandrffrent View the Whole Vpaldxvannishir'1g?machine. .and

in verticales srs-section the ,endfzofr thegmetor "elia-ftothismachinefwith itspadz; f Y.; .l

Vandc". at their' lippen part andibyfthesnpv lowing:

`fone;fhznndfk'y;theiiraine,1,; an ilon theother hand; by;y th@ Shaft.' `11i and) the -fdisdQf and .thereforetheafelectric. mot-or being ofverkhung, the V--vvn'ellcingfdigs@ presses-strongly one another and between which an .eleQtiF-,ic

motor canlbe inserted. The; motor controls -seiait by'nieansy off a. conical: coupling @sleeve 10i 1 'llhefy shaft; llendsgwthjaeba11i-12iin$nted* between a. lower half socken 13 :and fa. higherhalf socket 14a The .higher half) vsocketpis screwedintoV the half.. socket 13 fso 'as' tO/iprovideiforf a.-V very; pvecisevadjilstment 'of thev securing the slnallersscale adelview of p factory rotation. of

K I'hisglower half-Ksocket13y forms a; cylin. dricalg plateflf the .lower part; of .Wh-ieh l.holds a-,sqnaietube-.19.(Eig-5) thewalls of which are comparatlie1ythi1iandA each side 200i which hasgtwo .notches 21, 22 which make This y theyplates 27 2 8 together by;Y means Winged; nuts., 3f).

Qven the.- lower bidte socket 13m-nd -grnied integrallythenewth is: thai gear; wheelg Wat-ha veiticalitooiihwo lk. Onthe extremity 0f;tbeShat-:l-llasleeve.32 :is :,Sldablxf meunti bei#fastenedvbyitheastop Screwr34=. -Tfhe lower fpiart. ofr the l sleeveSZ beacsra. gear, Wheel 36 meshingwithhefgeaifwheel.31...

Recesses.wiefprvdednithefsupportng pontonfOia-ndfgthe Winged-portion 421..; The .ipantS-.fralersnltably ffxedz in blie-reccsscs,.rf f

surface 44.4. Tlievwhirlwnd Iprocheedby; y'the rzctatentof bhetnolipfmjets'the dustagnst theme11@ off-.blieb cllfsl-.iapedaparta uponfthefsui'facevet topolish VThis .disc bears. completely: upon the surface ,because of; shaft. `11. .NNE-hen )the electric.. motof is p actuated;A the. shaft 11?y causes. the rotation; of the discv 2511051 means; ofi; the` can Wheels Byreasonof-the play-of theseparts,

'this rotation; cany take .placegwhatevermay bet-Ween ycertain-1.limits,k t1ie;.directionof discQ With-liefenence totheA shattgll.

However, experience. proves that for aV satislofgthefba-llV andgvsocketijoint abt-he extremity f* the disc Without any weight, as it does on any speed irregularities or vibrations the gearwork 31-36 should have for each speed of the motor shaft, a predetermined play and that the ball l2 should also have a very slight play inside its socket. The devices which enable the play in the socket and in the gear work to be adjusted and which have been described hereinabove, allow this adjustment to be easily and speedily obtained. As the work advances the sand paper sheets 24 wear out and aie replaced. At the same time in order to prevent the disc 25 from incliiiing too much with reference to the shaft 1l, the two adjusting screws 4l are turned so as to correspondingly move the small supporting bar 37. The sand papering of a wooden surface must be made with a series of sand papers of increasing` fineness. The proper amount of sand paper sheets of each fineness is previously set on discs such as 25. lVlien the first disc has finished its work, it is easily removed as it is secured only by the square tubular spring tenoii and a fresh disc is put in its place. The workman controls the work and pushes the machine successively on the different parts of the surface to polish and makes it act longer on those parts which require it. The machine is particularly apt for sand papering veneered wood, when the veneer is very thin and is not properly stuck against its support in all parts thereof. lVhen the machine arrives on a part where the veneer is raised, it bears on this part only by its other part and the disc is inclined so as to bear normally on the veneer. whereby all danger of breaking open the raised part of the veneer is avoided.

When the machine is intended for working a marble or stone or similar surface, it isnecessary to replace the wooden disc 25 with its sand paper sheets 26 by a generally circular emery stone provided with a cen- .tral square hole in its center. Such a stone is shown in 45 on Figs. 6 and 7. For securing quickly the stone, a plate 18 is used carrying a square projection 46 on its lower surface. This projection is tapped in its center and is split along its angles so as to form four elastic segments l47, 48, 49 and 50. The emery stone 45 shows, as stated, a central square hole of corresponding size which can engage over the square projection 46. In the tapped part of the project-ion is screwed a screw 5l, conical head 52 of which enters theconical opening of the tapped part. When the screw is suitably screw-ed, tlie'four sides of the square projection are slightly expanded and the sides'of the square hole in the stone 45- whicli is thus securely held.

A varnishing machine of the same type is* 9 and l0. On the end ofy shown on Figs. 8, shaft ll is secured ahollow part "53 pro` vided with a series of holes 54 and carrying` bear exactly against' Y a pad of flock 55 held by the cloth 56 and the ring 57. This hollow part is secured to a tapped block 48 wherein is screwed a screw 59 projecting from the lower part of plate 18. The frame l, 2 bears a reservoir 60 divided in three compartments, one of which contains alcohol and another varnish which are led into the hollow part 53 through the tub-es 61, 62. The third compartment of the reservoir contains oil which can be led directly on to the surface to polish through the' tube 63. In this ease the frame l, 2 is preferably provided at its lower part with a roller 64.

The working of this pad varnishing nia- @0 chine is the same as that of the sand papering machine. These machines differ only by the tool secured on the extremity of the shaft ll. The varnish and the alcohol flowing at a suitable rate arrive in the hollow part 53, pass through the holes 54 and moisten the pad The cloth 56 lets a suitable amount of this liquid pass through it. The tube 63 allows a. suitable quantity of oil to be poured over the surface to polish in front of the part to varnish. lVhen it is necessary to change the pad either because it is worn out or because it is too saturated with alcohol or varnish, it can be (ione merely by unscrewing the hollow part 53 from the screw 59 and to screw anotheighollow part in its place.

IVhat I claim is:

l. A machine for polishing the surface of materials such as wood, marble and stone '100 comprising a frame resting` on the surface to be polished, a motor supported by said frame, a shaft operable by said motor and disposed perpendicularly to the surface to be polished, a ball at the extremity of the shaft, a socket cooperating with said ball and comprising a lower half-socket and an upper half socket at an adjustable height above the lower half socket, a gear wheel formed on the socket, a second gear wheel connected to the shaft and meshing loosely with the first gear wheel to provide a certain play between said gear wheels, and a working tool secured to the lower halfsoeket.

2. A machine for polishing the surface of materials such as wood, marble and stone comprising a frame adapted to rest on the surface to be polished, a motor supported by said frame, a shaft operativel7 associ- I20 ated with the motor and extending perpeii- 'dicularly to the surface to be polished, a ball at the extremity lof said shaft, a lower half socket under said ball, an upper half socket adjustably associated with the lower half' 325 socketa gear wheel on the lower half socket, a second gear wheel on the motor shaft and meshing loosely with the first gear wheel to provide a certain play between both gear wheels, a working tool secured to the lower Y- Vsaid frame, a shaft operatively associated'V half socket, andalmeansf for adjusting the height of the frame. j f Y Y 3. A machine for polishingathe surface of materials, such as wood, marble, and stone comprising a frame adapted to rest on the surface to be polished, a motor'supported by ,mountedon the shaft and loosely meshing with the first gear wheel to provide a certain play between both the gear wheels, a stop screw` for said second gear wheel, a working tool secured to the lowerfhalfsocket, a sup porting' bar under the frame, and screws for adjustingV the height of said bar. Y l

4f. A `machine for 'polishing' the surface. of

materials suchv as wood, marble and stone,

; with the motor and disposed perpendicularly comprising a frame adapted to rest on the surface to be polished, a motor supported by said frame, a shaft operatively associated to the surface tobe polished, a ball at the extremity of the shaft, a socket cooperating with said ball and' comprising a lower half lsocket and an upper half socket screwed in the. lower half socket, a stop screw for the upper half socket, a .gear wheel formed on the socket, a second geary wheel slidably'- `tise for receiving said tenen.

mounted en the motor shaft. and meshing( a certain play between the `gear wheels, a stop screw'for said second gear wheel, a spring` tenen projecting` under the lower half socket, a working tool, said tool provided withV a inortise for receiving` said tenon, a supporting bar under the frame, and screws for adjusting the height of said supporting bar.

5.-A machine for polishing` the surface of materials such as wood, marble and stone` comprising a .frame resting oii the surface` rto be polished, a motor supported by the frame, a shaft operatively associated with the motor and disposed perpendicularly to loosely with the first gear wheel to provide the surface to be polished, a ball at the extre'mity of the shaft, a socket cooperating with said ball and comprising' a lower half socketpand an upper half socket screwed in I the lower half socket, a stop screw for the upper half socket, a gear wheel on the socket, a second-gear wheel slidably mountedV on the motor shaft and meshing` looselywitli the first gear wheel to provide a certain play between both gear wheels, a stop `screw for said second gear wheel, `a springV square tubular tenen projecting` under the lower i half socket, said vtenonprovided with longitudinal slots along the sides thereof, andv a working tool. provided with a square mor- In'witnessfwhereof I have hereunto set my hand..v Y f e Y FRANQQIS n J URICINEG. 

